CN211796024U - Juice mixer - Google Patents

Abstract

The utility model relates to a system fruit juice technical field in the fruit provides a juice mixer, including drive assembly, switching subassembly and straw knife tackle spare. The drive assembly has an output shaft; the switching assembly comprises a fixed piece and a movable piece, the fixed piece is fixed on the driving assembly, the movable piece is rotatably arranged in the fixed piece, and the rotating center of the movable piece is superposed with the driving assembly; the straw knife assembly comprises a tubular shaft, a connecting piece and a knife, the tubular shaft penetrates through the straw knife assembly along the axial direction, the connecting piece is arranged on a shaft body between two end faces of the tubular shaft, the tubular shaft section on one side of the connecting piece is a first section, the tubular shaft section on the other side of the connecting piece is a second section, the knife is fixed at the tail end section of the second section, the straw knife assembly is detachably arranged on the moving part through the connecting piece, and the tubular shaft is matched with the moving part through a shaft hole between the connecting piece or. Through the connecting piece connection of adapter assembly and straw axle subassembly, the one end of confession user's lip contact of hollow shaft can not contact with drive assembly, and is more sanitary.

Description

Juice mixer

Technical Field

The utility model relates to a domestic juice extractor technical field, concretely relates to juice agitator.

Background

Fruits such as watermelon and orange are popular because of their palatable taste and nutritional abundance. However, since the fruit has a thick peel, when the fruit is eaten or when a juicing operation is desired, the fruit usually needs to be cut or peeled, which causes disadvantages such as juice loss and complicated cleaning operation.

Research into solutions to this problem has long been available.

Japanese patent laid-open No. Hei 3-55010 describes an apparatus for cutting pulp into fruit, which can eliminate the operation of cutting fruit.

Japanese patent application laid-open No. 9-294672 describes an apparatus for cutting pulp into fruit without cutting the fruit.

Chinese patent CN104411214B proposes a device which can treat fruit with bast such as orange without cutting the fruit, only needs to open a hole on the bast of the fruit, and then carry out pulp crushing operation in the fruit, and directly make the pulp into juice/pulp in the bast of the fruit. The straw knife assembly of the device is provided with a plurality of knife strips which are arranged on the surface of the rotating shaft along the axial direction of the rotating shaft, the knife strips of the straw knife assembly are in a furling state and a spreading state which is attached to the surface of the main shaft and is bent along the radial direction, and the device is also provided with a power and transmission mechanism which drives the straw knife assembly to rotate, and a mechanism which drives the straw knife assembly to change between spreading and furling. The straw knife assembly can be inserted into fruits through a hole which is pre-cut on the peel in a furled state, then rotates and gradually becomes a spreading state in the rotation process, and the knife strip gradually acts on the pulp and treats the pulp into a juice state in the process. In order to realize the autorotation of the suction pipe cutter assembly and the change between the opening state and the closing state, the device is provided with a complex transmission and manual operation mechanism, a user needs to hold the fruit tightly from the bottom of the fruit with one hand to prevent the fruit from rotating along with the suction pipe cutter assembly, needs the strength of the whole arm part to keep lifting the fruit, and simultaneously needs to press the handle with the other hand to change the suction pipe cutter assembly from the closing state to the opening state, so the operation is relatively laborious.

According to the technical scheme, after the pulp is smashed, the cutter needs to be pulled out of the fruit, and then the fruit juice is sucked through the suction pipe. When the reusable straw is used, the straw needs to be cleaned besides the cutter; disposable straws are not environmentally friendly.

Chinese patent CN203789662U proposes a concept of expecting to break the pulp inside the oranges by means of an "orange straw" and to suck the juice directly through the "straw". However, in the technical scheme disclosed in the patent publication, the 'tube body 1' is provided with the water outlet hole 2, the sliding groove 3 and the blade hole 10, and the 'tube body 1' cannot form a closed space with fruit juice, so that the function of a 'straw' cannot be realized at all. Moreover, the holes and grooves are the structures necessary for breaking the pulp and cannot be discarded, so that the possibility of improvement does not exist, and the method has no practicability. Even if the technical scheme can reluctantly realize the function of sucking the fruit juice, the sanitary reliability and the cleaning convenience of the fruit juice can not be ensured, for example, the motor is arranged in the tube body 1, and the fruit juice can not be contacted with liquid no matter in the using or cleaning process; the contact and relative movement between the parts also causes the adhesion of abraded material (oil sludge and metal dust, etc. common in machinery) inside and outside the tube body 1.

Further, the following patent documents also describe studies on the above-mentioned problems in order to solve all or part of the above-mentioned problems. CN108720536A, CN108720535A, CN108720534A, CN108685459A, CN108685458A, CN108685457A, CN108685456A, CN209074112U, CN209074113U, CN209074114U, CN 203662506U, CN203262999U, CN 203059328U, CN102240153A, CN 202234699U, CN102987897A, CN101530279A, CN2565371Y, CN2765540Y, CN 204764940U, CN 204764938U, CN 204445291U, CN 204105686U, CN 203935015U, CN 203776644U, Showa 56-35315, Showa 52-51365, US2015237910A1 and the like.

Therefore, on the premise of ensuring sanitation and realizability, the fruit juice can be more conveniently obtained and the cleaning work can be reduced, which is a problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

To solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a juicer.

In a first aspect, a juicer includes a drive assembly, an adapter assembly, and a straw-knife assembly. The drive assembly has an output shaft; the switching assembly comprises a fixed piece and a movable piece, the fixed piece is fixed on the driving assembly, the movable piece is rotatably arranged in the fixed piece, and the rotating center of the movable piece is superposed with the driving assembly; the straw knife assembly comprises a tubular shaft, a connecting piece and a knife, the tubular shaft penetrates through the straw knife assembly along the axial direction, the connecting piece is arranged on a shaft body between two end faces of the tubular shaft, the tubular shaft section on one side of the connecting piece is a first section, the tubular shaft section on the other side of the connecting piece is a second section, the knife is fixed at the tail end section of the second section, the straw knife assembly is detachably arranged on the moving part through the connecting piece, and the tubular shaft is matched with the moving part through a shaft hole between the connecting piece or.

In a first possible implementation manner, an axial limiting structure and a torque transmission structure are arranged between the connecting piece and the moving piece, the axial limiting structure limits the movement of the suction pipe cutter assembly relative to the moving piece along the axial direction, and the torque transmission structure is used for transmitting the torque output by the moving piece to the connecting piece.

With reference to the foregoing possible implementation manners, in a second possible implementation manner, an accommodating cavity is provided at the end of the movable member, and the first section of the tubular shaft is located in the accommodating cavity.

In combination with the above possible implementation manners, in a second possible implementation manner, the accommodating cavity includes a first hole and a second hole which are communicated with each other, the diameter of the first hole is larger than that of the second hole, the first hole is a hole section at an inlet of the accommodating cavity, the second hole is a hole section inside the accommodating cavity, and a shaft hole is formed between the first section and the second hole of the tubular shaft.

In combination with the above possible implementation manners, in a third possible implementation manner, a shaft hole fit is formed between the end of the first section and the second hole.

With reference to the foregoing possible implementation manners, in a fourth possible implementation manner, the torque transmission structure includes a force application portion disposed on the movable member and a force bearing portion disposed on the connecting member, the force application portion can generate an acting force on the force bearing portion, the acting force at least includes a force in a normal direction of a contact portion of the two, and the force in the normal direction of the contact portion of the two does not pass through a center of the pipe shaft.

With reference to the foregoing possible implementation manner, in a fifth possible implementation manner, a side wall surrounding the shaft is provided on the connecting piece, and a portion of the side wall, which is used for the bearing portion to abut against the force application portion, is the bearing portion.

In a sixth possible implementation manner, in combination with the above possible implementation manner, a recess is formed in the connecting member, a sinking direction of the recess is along an axial direction of the shaft, and the force bearing portion is a side wall of the recess; or the connecting piece is provided with a bulge, the height direction of the bulge is along the axial direction of the shaft, and the force bearing part is a convex side wall.

In combination with the above possible implementation manners, in a seventh possible implementation manner, the axial limiting structure is a magnetic attraction structure arranged between the connecting member and the moving member.

With reference to the foregoing possible implementation manner, in an eighth possible implementation manner, the movable member is provided with an accommodating portion, the accommodating portion at least includes a first axial limiting end wall, and the first axial limiting end wall is used for abutting against a surface of the connecting member facing the knife so as to limit the connecting member from axially moving away from the movable member.

With reference to the foregoing possible implementation manner, in a ninth possible implementation manner, the accommodating portion further includes a second axial limiting end wall, a second axial limiting end wall surface is disposed in a face-to-face manner with the first axial limiting end wall, and the second axial limiting end wall is configured to abut against a surface of the connecting member facing away from the knife so as to limit the axial approach of the connecting member to the moving member.

With reference to the foregoing possible implementation manners, in a tenth possible implementation manner, an end surface of the moving member of the driving assembly is provided with a first recessed portion and a second recessed portion, a depth direction of the first recessed portion is along an axial direction of the moving member, the second recessed portion is recessed along a radial direction of the moving member by a side wall of the first recessed portion, the second recessed portion has two opposite side walls that are normal along the axial direction of the moving member, and the two opposite side walls are a first axial limiting end wall and a second axial limiting end wall.

With reference to the foregoing possible implementation manner, in an eleventh possible implementation manner, at least a part of an outer contour of the connecting element is adapted to the first recess, and the connecting element can enter the first recess in the axial direction and can rotate into the second recess.

In a twelfth possible implementation manner, in combination with the above possible implementation manners, the fixing member and the housing of the driving assembly are an integral structure.

In combination with the above possible implementation manners, in a thirteenth possible implementation manner, the knife is an arc-shaped blade, the arc-shaped blade includes a ring body and a hole radially penetrating through one wall body or two wall bodies of the ring body, the ring body is fittingly connected with the shaft hole of the pipe shaft through the hole, and the ring body is formed into two arc-shaped blades by taking a plane passing through an axis of the hole and an axis of the ring body as a boundary.

In combination with the above possible implementation manners, in a fourteenth possible implementation manner, the edge of the arc-shaped blade is located at a boundary between the inner surface of the ring body and the end surface of the ring body.

In combination with the above possible implementation manners, in a fifteenth possible implementation manner, the accommodating cavity is a blind hole.

With reference to the foregoing possible implementation manners, in a sixteenth possible implementation manner, the bottom wall of the blind hole is used for forming an axial limit on the end surface of the first section of the tubular shaft.

According to the juice stirring device, the suction pipe shaft assembly is connected with the adapter assembly through the connecting piece, so that one end of the pipe shaft, which is contacted with the mouth and the lip of a user, is not contacted with the driving assembly, and the juice stirring device is more sanitary.

Drawings

FIG. 1 is a schematic perspective view of a juicer according to some embodiments of the present disclosure;

FIG. 2 is a schematic view of the juicer of FIG. 1 in an exploded condition;

FIG. 3 is a schematic structural view of the outer sleeve of FIG. 2;

FIG. 4 is a schematic structural view of the coupling sleeve and sleeve end cap assembly of FIG. 2;

FIG. 5 is a schematic view of a connecting bushing according to some alternative embodiments of the present disclosure;

FIG. 6 is a cross-sectional view of a second recess of the connecting bushing of FIG. 5;

FIG. 7 is a schematic structural view of the suction knife assembly of FIG. 1;

FIG. 8 is a schematic view of the structure of the connector of FIG. 7;

FIG. 9 is a schematic view of the structure of the knife of FIG. 7;

FIG. 10 is a cross-sectional view of the juicer of FIG. 1;

FIG. 11 is an enlarged partial view I of FIG. 10;

FIG. 12 is a sectional view A-A of FIG. 11;

fig. 13 is a schematic view of the structure of the slitting knife in some embodiments.

Detailed Description

In order that the above objects, features and advantages of the present disclosure can be more clearly understood, the present disclosure will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present disclosure, and not all embodiments. The specific embodiments described herein are merely illustrative of the disclosure and are not intended to be limiting. All other embodiments derived by one of ordinary skill in the art from the described embodiments of the disclosure are intended to be within the scope of the disclosure.

Referring to fig. 1, fig. 1 is a schematic perspective view of a juicer according to some embodiments of the present disclosure. The juicer includes a drive assembly 100, an adapter assembly 200, a straw knife assembly 300, and a housing 400. The housing 400 is sleeved outside the driving assembly 100, the adapter assembly 200 is connected with the output shaft of the driving assembly 100, and the pipette blade assembly 300 is detachably disposed on the adapter assembly 200.

The juice whisk is further described below in conjunction with fig. 2-13.

As shown, fig. 2 is a schematic exploded view of the juicer shown in fig. 1, and fig. 3 is a schematic structural view of the outer sleeve 210 of fig. 2.

The drive assembly 100 includes a motor 110 and a reducer 120, and an output shaft of the reducer 120 is an output shaft of the drive assembly 100. The reducer 120 includes a reducer housing 121, a gear set 122, and a reducer output shaft 123. The gear set 122 is arranged in the reducer casing 121, the reducer output shaft 123 is a cylinder, and two parallel planes are milled on the circumference surface of the cylinder. One end of the reducer housing 121 is fixed to the motor 110, and the other end is fixed to the outer sleeve 210, and the outer sleeve 210 encloses the gear set 122 in the reducer housing 121 and supports the reducer output shaft 123.

Adapter assembly 200 includes an outer sleeve 210, an end cap 220, a coupling sleeve 230, and a sleeve end cap 240. The outer sleeve 210 is a fixing member in the adaptor assembly 200, and is fixed integrally with the reducer 120. The assembly of the connecting boss 230 and the boss end cap 240 is a movable member in the adaptor assembly 200.

The outer sleeve 210 comprises a sleeve body and an end plate 215 at one end of the sleeve body, a circular hole-shaped inner cavity 211 is arranged in the sleeve body, a shaft hole 212 is arranged on the end plate 215, and the shaft hole 212 is communicated with the inner cavity 211. The outer circumferential surface of one end of the end plate 215 of the outer sleeve 210 is provided with a stepped structure including a circumferential surface 213, and the circumferential surface 213 is used for connecting the outer housing 400. The outer sleeve 210 is fixed to one end of the reducer housing 121 of the reducer 120 through 215, and encloses the gear set 122 in the reducer housing 121; the reducer output shaft 123 extends into the inner cavity 211 of the outer sleeve 210 from the shaft hole 212, and a shaft hole fit capable of rotating relatively is formed between the reducer output shaft 123 and the shaft hole 212. The mouth of the inner cavity 211 is provided with a slot 214 for mounting an end cap 220. The end cap 220 is a disk with a central hole that fits into the slot 214 to provide axial restraint to the components within the internal cavity 211.

The assembly of the connecting sleeve 230 and the sleeve cover 240 is rotatably disposed in the inner cavity 211 of the outer sleeve 210, axially restrained by the adapter assembly 200, and capable of being driven to rotate by the reducer output shaft 123.

Referring also to the structure shown in fig. 12, 230 is a cylindrical part. Be provided with on connecting shaft sleeve 230's an terminal surface and hold chamber 232, hold chamber 232 and be the blind hole, and be the shoulder hole, the aperture of chamber mouth department is greater than the aperture of bottom. The outer circumferential surfaces at both ends of the coupling boss 230 are respectively provided with a first circumferential surface 233 and a second circumferential surface 234 protruded to have a diameter equal to the inner diameter of the inner cavity 211 of the outer sleeve 210 for forming a rotational fit with the inner cavity 211. The center of the other end of the connecting sleeve 230 is provided with a boss 235, and the boss 235 is provided with a waist-shaped hole 231. The boss 235 is adapted to contact the bottom wall of the cavity 211 to reduce the friction area between the end surface of the coupling sleeve 230 and the bottom wall of the cavity 211.

The shaft sleeve end cover 240 is a disk-shaped part, and a through hole with a round-corner square cross section is formed in the center of the shaft sleeve end cover. Four side walls of the through hole are all provided with recessed portions, and the recessed portions are communicated with one end face of the shaft sleeve end cover 240. When the sleeve cover 240 is coaxially fitted to one end surface of the coupling sleeve 230, the through hole having a square cross section with rounded corners and the end surface of the sleeve cover 240 form a first recess 241, and a side wall of the through hole is a side wall of the first recess 241. The recess on the sidewall of the through hole and the end surface of the coupling boss 230 enclose a second recess 243.

In the structure shown in the drawings, the second recess 243 forms an accommodating portion, and the second recess 243 includes two facing sidewalls: the end face of the coupling boss 230 corresponds to a second recess 243, and the side walls (portions corresponding to reference numerals 236 and 244 in fig. 12) of the second recess 243 parallel to the end face of the boss end cap 240. The normal directions of the two side walls are along the axial direction of the connecting sleeve 230, and the two side walls are a first axial limiting end wall and a second axial limiting end wall, which can form an axial limit for the part located in the second recess 243. The first axial limiting end wall is adapted to abut against the element located in the second recess 243 to limit axial movement away from the connecting boss 230, and the second axial limiting end wall is adapted to abut against the element located in the second recess 243 to limit axial movement towards the connecting boss 230.

Referring to fig. 11, a cross-sectional structure at the second recess 243 is shown. The inner surface of the second recess 243 parallel to the axial direction of the coupling sleeve 230 includes two portions, i.e., a bottom wall 245 and a side wall 246. The bottom wall 245 is a circumferential band concentric with the receiving cavity 232, the side wall 246 is a planar band, and the side wall 246 and the bottom wall 245 smoothly transition through an arc.

Referring to fig. 5 and 6, fig. 5 is a schematic structural view of a connecting bushing 230a according to some alternative embodiments of the present disclosure, and fig. 6 is a schematic cross-sectional structural view of a second recess 242a of the connecting bushing 230a of fig. 5.

The structure of the coupling boss 230a can be roughly seen as the coupling boss 230 and the boss cover 240 which are integrated in the previous embodiment, and the second recess 243a corresponds to the structure when the second recess 243 penetrates the outer circumferential surface of the boss cover 240. The first circumferential surface 233a and the second circumferential surface 234a are distributed at two ends of the connecting shaft sleeve 230a, the first recessed portion 241a is a counter bore with a cross section in a rounded rectangle, and a side wall 242a of the counter bore is provided with a second recessed portion 243a penetrating through the wall body. The second recessed portion 243a has a rectangular cross section, i.e., the inner surface thereof includes four portions, namely, a first side wall 2431, a second side wall 2432, a first end wall 2433 and a second end wall 2434, the first side wall 2431 and the second side wall 2432 face each other, and are parallel to the axis of the connecting boss 230 a; the first end wall 2433 and the second end wall 2434 face each other, and are parallel to the end surface of the coupling boss 230 a.

Referring to fig. 7 to 9, fig. 7 is a schematic structural view of the suction knife assembly 300 of fig. 1, fig. 8 is a schematic structural view of the coupling member 320 of fig. 7, and fig. 9 is a schematic structural view of the knife 330 of fig. 7.

The pipette knife assembly 300 includes a tube shaft 310, a connector 320, and a knife 330. The tubular shaft 310 penetrates in the axial direction. The connecting member 320 is disposed on the shaft body between the two end surfaces of the tube shaft 310, the tube shaft sections on the two sides of the connecting member 320 are a first section 311 and a second section 312, respectively, and the length of the second section 312 is greater than that of the first section 311. The blade 330 is secured to the end section of the second section 312. The pipette blade assembly 300 is secured to an assembly body that is removably attached to the coupling hub 230 and the hub end cap 240 by a coupling member 320.

The connector 320 includes a positioning plate 321, a boss 322, and a central hole 323. The positioning plate 321 is a square plate with a round corner, and the plate body is provided with a through hole. The shaft sleeve 322 is coaxial with the through hole of the positioning plate 321, the inner diameter of the shaft sleeve is equal to the diameter of the through hole, and the central hole 323 penetrates through the positioning plate 321 and the shaft sleeve 322. Four corners of the positioning plate 321 protrude out of the outer surface of the shaft sleeve 322, two plate surfaces of the positioning plate 321 are a first end wall 3213 and a second end wall 3214, the side surfaces include a first side surface 3211 and a second side surface 3212, the first side surface 3211 is a surface of a rounded corner portion, and the second side surface 3212 is a plane between two rounded corners. When the connecting member 320 is mounted on the tube shaft 310, the shaft sleeve 322 is located on the same side as the first section 311 of the tube shaft 310, and the positioning plate 321 is located on the same side as the second section 312 of the tube shaft 310.

The knife 330 comprises a ring body and an upper hole 333 and a lower hole 334 provided on the ring body, both holes being radial and coaxial with respect to the ring body, both holes extending through the outer 331 and inner 332 surfaces of the ring body. The edge of the ring body is provided with a cutting edge 335, the edge of the cutting edge 335 being located on the side of the inner surface 332, i.e. at the intersection of the inner surface 332 and the end face of the ring body. The knife 330 is attached to the end section of the second section 312 of the tube shaft 310 by an upper hole 333 and a lower hole 334. The two semi-circular ring bodies of the knife 330 located at both sides of the tubular shaft 310 are arc-shaped blades, and the width of the middle of the semi-circular ring bodies is smaller than the width of the two ends. The structure shown in the figure is only one forming mode of the arc-shaped blade, the processing and the installation are simple, and the appearance has certain aesthetic feeling. In some alternative embodiments, the semi-circular ring may be of a uniform width sheet configuration. In other alternative embodiments, the number of the semi-circular rings may also be 3 or 4, and a plurality of the semi-circular rings are uniformly distributed within 360 degrees around the pipe shaft 310.

The edge of the knife 330 is located at the junction of the inner surface of the ring body and the end surface of the ring body, when in use, the outer surface 331 of the knife 330 is located at the outermost side and is in direct contact with the fruit peel, and the edge is located at one side of the inner surface to avoid directly scraping the inner surface of the fruit peel.

The portion of the knife 330 where the hole is provided has a large width, and when the knife 330 is inserted into a fruit, the portion can poke a large space on the flesh of the fruit, facilitating the rotation of the knife 330. The arc-shaped blade has the advantage that the tail end of the arc-shaped blade is fixed on or close to the surface of the tubular shaft, so that the inner surface of the fruit peel of the fruit cannot be damaged.

Referring to fig. 10 to 12, fig. 10 is a sectional view of the juicer of fig. 1, fig. 11 is a partially enlarged view I of fig. 10, and fig. 12 is a sectional view a-a of fig. 11, and the assembly relationship between the driving assembly 100, the adaptor assembly 200, and the suction knife assembly 300 will be further described in conjunction with the structure shown in the drawings.

The driving assembly 100 is fixed to the adapter assembly 200 through the connection between the reducer 120 and the outer sleeve 210, the portion of the reducer output shaft 123 milled with a plane is inserted into the kidney-shaped hole 231 of the outer sleeve 210, and torque can be transmitted between the two planes and the two opposite side planes of the kidney-shaped hole 231.

One end of the housing 400 is fitted over the circumferential surface 213 of the outer sleeve 210, and the housing 400 encloses the drive assembly 100 therein. The shell 400 can be internally provided with a battery, a switch, a circuit board and other structures, and the surface of the shell 400 can be provided with a switch, a charging interface and other structures. The outer surface of the housing 400 may be gripped by a user.

The first section 311 of the suction knife assembly 300 and the connector 320 may enter the first recess 241 of the sleeve end cap 240 and the receiving cavity 232 of the coupling sleeve 230 via the central hole of the end cap 220. The positioning plate 321 of the connecting member 320 is located in the first recess 241, the shaft sleeve 322 and the first segment 311 are located in the accommodating cavity 232, the shaft sleeve 322 forms a shaft hole fit with the shaft sleeve, the end of the first segment 311 is inserted into the hole at the bottom of the accommodating cavity 232 and forms a shaft hole fit, and the other tube segments of the first segment 311 are not in contact with the accommodating cavity 232.

The outer contour of the positioning plate 321 is the same as the cross-sectional shape of the first recess 241 of the sleeve cover 240, and the connecting element positioning plate 321 can enter the first recess 241 along the axial direction and can rotate to enter the second recess 243. In some alternative embodiments, the outer contour of the positioning plate 321 does not completely fit into the first concave portion 241, and only a part of the outer contour fits into the first concave portion, so that the guiding function can be achieved. In other alternative embodiments, the positioning plate 321 has an outer contour that is different from the cross-sectional shape of the first recess 241.

Referring to fig. 11 and 12, when the suction pipe cutter assembly 300 rotates in a clockwise direction, four corners of the positioning plate 321 of the coupling member 320 enter the second recess 243. At this time, the sidewall 246 of the second recess 243 contacts with the second side 3212 of the positioning plate 321 to form a torque transmission structure, the sidewall 246 of the second recess 243 is a force applying portion, and the second side 3212 of the connecting member 320 is a force bearing portion. Force can be generated between the contact surfaces of the side wall 246 and the second side surface 3212, and the force in the normal direction of the contact surfaces does not pass through the center of the tubular shaft 310, so that when the coupling sleeve 230 rotates counterclockwise, torque is generated on the tubular shaft 310 to drive the suction knife assembly 300 to rotate. This partial force may directly produce a torque on the tube shaft 310 rather than producing a frictional force normal to the interface, which in turn produces a torque on the tube shaft 310. The torque transmission structure and the axial limiting structure act on the connecting piece 320 of the suction pipe cutter assembly 300 respectively, the connection and the torque transmission are realized without friction force generated by extrusion between the connecting piece 320 and the connecting shaft sleeve 230, the disassembly is more convenient, the material abrasion caused by friction can be reduced, and the pollution to the suction pipe cutter assembly 300 is reduced.

The radius of the first side 3211 of the positioning plate 321 farthest from the center of the tube shaft 310 (relative to the center of the tube shaft 310) is equal to the radius of the bottom wall 245, and is rotatably engaged with the bottom wall 245. Of course, this is not essential and no contact between the first side 3211 and the bottom wall 245 is allowed, and the engagement between the boss 322 of the connecting member 320 and the receiving cavity 232 of the connecting boss 230 keeps the tube shaft 310 coaxial with the connecting boss 230, and the engagement between the first segment 311 and the receiving cavity 232 has the same effect. In some alternative embodiments, there is no axial hole mating structure between the end of the first segment 311 and the receiving cavity 232, and/or between the sleeve 322 and the receiving cavity 232.

The first and second axial restraint end walls 244, 236 of the second recess 243 retain the positioning plate 321 therebetween, which form axial restraint structures with the first and second end walls 3213, 3214 of the positioning plate 321, respectively, to axially retain the connector 320 in position.

In some alternative embodiments, the distance between the first axial stop end wall 244 and the second axial stop end wall 236 is greater than the thickness of the positioning plate 321, and the bottom wall of the receiving cavity 232 is in abutting contact with the end surface of the first segment 311 to form an axial stop for the tube shaft 310.

In alternative embodiments, the positioning plate 321 of the connecting member 320 may be replaced by other structures protruding from the surface of the tube shaft 310, such as four pins perpendicular to the tube shaft 310, which form an axial stop with the second axial stop end wall 236 and the first axial stop end wall 244 of the second recess 243 and a torque transmission structure with the side wall 246.

In some alternative embodiments, the fixing member is of unitary construction with the housing of the drive assembly. In other alternative embodiments, the sleeve body of outer sleeve 210 is a split structure with end plate 215 therebetween.

In some alternative embodiments, the receiving cavity 232 of the connecting sleeve 230 is a through hole.

In some alternative embodiments, the torque transmission structure between the connecting member 320 and the connecting sleeve 230 and the sleeve end cap 240 may also be a structure that fits in the axial shaft hole. The contacting sidewalls between the shaft bores can transmit torque. If the positioning plate 321 is provided with one or more holes or bosses, the sleeve end cap 240 is correspondingly provided with matching bosses and holes. The connecting member 320 is made of ferromagnetic material or contains ferromagnetic material, and the end cap 240 of the shaft sleeve is provided with a magnet, so that an axial limiting structure is formed between the two and the connecting member is easy to mount and dismount. In other alternative embodiments, the second recess may not be provided, and torque may be transmitted only by means of the shape fit between the side surface of the positioning plate 321 and the side surface of the first recess. Meanwhile, the magnetic attraction structure is used for realizing axial limiting.

Since the spool 310 is driven via the connector 320, the first section of the spool 310 may not contact the drive assembly 100, avoiding oil or dust contamination of the drive assembly. The first section of the tubular shaft 310 is located in the containing cavity 232 of the connecting shaft sleeve 230, and the containing cavity 232 is closed by the connecting piece 320, so that the pollution of the external environment to the first section of the tubular shaft 310 is better prevented, and the sanitation hazard is less when the lips of a human body contact with the first section 311 of the tubular shaft 310.

In some alternative embodiments, the connecting member 320 is provided with an internal or external thread structure, and the connecting sleeve 230 is provided with a corresponding thread structure, which form a detachable connection and a torque-transmitting connection through a threaded connection.

In some alternative embodiments, a plurality of "L" shaped structures may be further disposed on the end surface of the connecting sleeve 230 to realize a torque transmission structure and an axial limiting structure. The L-shaped structure comprises a vertical rod and a horizontal rod, one end of the vertical rod is fixed on the end face of the connecting shaft sleeve 230, one end of the vertical rod, provided with the horizontal rod, is a free end, and the horizontal rod forms a cantilever beam structure. Referring to fig. 5, the cross bar corresponds to a cantilever beam formed by removing a portion of the cross beam structure between the second recess 243a and the end surface of the coupling sleeve 230a in fig. 5, and separating one end of the cross beam from the connection with the body of the coupling sleeve 230 a. The side surface of the vertical rod can transmit torque with the connecting piece, and the transverse rod and the end surface of the connecting shaft sleeve 230 can realize the axial limiting function. In another alternative embodiment, the "L" shaped structure may also be replaced with a "T" shaped structure.

Referring to fig. 13, an opener 50 is shown. The mouth gag 50 is a cylindrical structure that fits over an outer sleeve 210. The free end of the cylindrical structure is a cutter 51, the cutter 51 is formed by a circle of thin-wall structure protruding from the end face of the cylinder, and the cutting edge is positioned at the edge of the thin-wall structure. The thin-walled structure is provided with a notch (not shown). There is a certain distance between the boundary between the thin-walled structure and the end face of the barrel and the outer surface of the barrel, i.e., the boundary between the end face and the outer peripheral surface of the barrel forms a step/shoulder structure 52 relative to the outer sidewall of the thin-walled structure. When the fruit peeler is used, one end of the opener 50, which is provided with the opening knife 51, can be inserted into a fruit, and then the step/shaft shoulder 52 is used as a support to pry the fruit peel, so that the part of the fruit peel surrounded by the opening knife 51 protrudes out of the surface of the fruit. The opening knife is provided with a notch, the notch enables the opener 50 to be an unclosed ring for the cutting track of the fruit peel, namely, the fruit peel in the ring is still connected with the fruit peel outside the ring, and the situation that the whole fruit peel in the ring is cut off and then is clamped in the opener 50 can be avoided. The mouth gag 50 could also be provided at other locations on the drive assembly, such as on the side wall or other end; alternatively, the mouth gag 50 may be configured independently of other components and may function independently.

In some alternative embodiments, the positioning plate 321 may also have a triangular, rectangular, oval, polygonal or other non-circular shape.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solutions of the present disclosure, not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims (18)

1. A juicer, comprising:

a drive assembly having an output shaft;

the switching assembly comprises a fixed piece and a movable piece, the fixed piece is fixed on the driving assembly, the movable piece is rotatably arranged in the fixed piece, and the rotating center of the movable piece is superposed with the driving assembly; and

the straw knife assembly comprises a tubular shaft, a connecting piece and a knife, wherein the tubular shaft penetrates through the straw knife assembly along the axial direction, the connecting piece is arranged on a shaft body between two end faces of the tubular shaft, a tubular shaft section on one side of the connecting piece is a first section, a tubular shaft section on the other side of the connecting piece is a second section, the knife is fixed at the tail end section of the second section, the straw knife assembly is detachably arranged on the moving part through the connecting piece, and the tubular shaft is matched with the moving part through the connecting piece or a shaft hole between the first section and the moving part to be coaxial.

2. The juicer of claim 1 wherein an axial limiting structure and a torque transmitting structure are disposed between the connecting member and the movable member, the axial limiting structure limiting the axial movement of the straw knife assembly relative to the movable member, the torque transmitting structure being configured to transmit torque output by the movable member to the connecting member.

3. The juicer of claim 1 wherein the movable member is provided at a distal end thereof with a receiving cavity, the first section of the tubular shaft being located within the receiving cavity.

4. The juicer of claim 3 wherein the receiving chamber includes first and second communicating apertures, the first aperture diameter being greater than the second aperture diameter, the first aperture being an aperture segment at an inlet of the receiving chamber, the second aperture being an aperture segment within the receiving chamber, the first segment of the spool and the second aperture forming the axial bore fit therebetween.

5. The juicer of claim 4 wherein said axial bore engagement is formed between said end of said first section and said second bore.

6. The juicer of claim 2 wherein the torque transmitting structure includes a force applying portion disposed on the movable member and a force bearing portion disposed on the connecting member, the force applying portion being capable of applying a force to the force bearing portion, the force applying force including at least a force normal to the contact portion of the movable member and the force bearing portion do not pass through the center of the tubular shaft.

7. The juicer of claim 6 wherein the connector has a side wall surrounding the shaft, the portion of the side wall for the counter bearing portion to bear against is the counter bearing portion.

8. The juicer of claim 6 wherein said connecting member is provided with a recess, the sinking direction of said recess is along the axial direction of said shaft, and said bearing portion is a side wall of said recess; or, the connecting piece is provided with a bulge, the height direction of the bulge is along the axial direction of the shaft, and the force bearing part is the side wall of the bulge.

9. The juicer of claim 2 wherein the axial stop structure is a magnetic attraction structure disposed between the connecting member and the movable member.

10. The juicer of claim 1 wherein the movable member is provided with a receiving portion including at least a first axial stop end wall for abutting against a surface of the connecting member facing the knife to limit axial movement thereof away from the movable member.

11. The juicer of claim 10 wherein the container further includes a second axial stop end wall surface disposed in face-to-face relation with the first axial stop end wall, the second axial stop end wall for abutting against a surface of the connecting member facing away from the knife to limit axial proximity to the movable member.

12. The juicer of claim 11 wherein the end face of the movable member of the drive assembly is provided with a first recess and a second recess, the depth direction of the first recess being along the axial direction of the movable member, the second recess being recessed from the side wall of the first recess along the radial direction of the movable member, the second recess having two opposing side walls normal to the axial direction of the movable member, the two opposing side walls being the first axial-limiting end wall and the second axial-limiting end wall.

13. The juicer of claim 12 wherein at least a portion of the outer profile of the connector fits into the first recess, the connector being axially movable into the first recess and rotatably movable into the second recess.

14. The juicer of claim 1 wherein the mount is of unitary construction with the housing of the drive assembly.

15. A juicer according to claim 1 wherein the knife is an arcuate blade comprising an annulus and a bore extending radially through one or both walls of the annulus, the annulus being matingly connected to the shaft bore of the pipe shaft by the bore, the annulus forming two arcuate blades bounded by a plane passing through the axis of the bore and the axis of the annulus.

16. The juicer of claim 15 wherein the edge of the arcuate blade is located at the intersection of the inner surface of the ring body and the end surface of the ring body.

17. A juicer according to claim 3 wherein the receiving chamber is blind.

18. The juicer of claim 17 wherein the bottom wall of the blind bore is configured to provide an axial stop for the end surface of the first section of the tubular shaft.

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